On terpenes. CXXXIII. Structure of acorenone, a sesquiterpenic ketone from sweet-flag oil (Acorus calamus L.)

1961 ◽  
Vol 26 (12) ◽  
pp. 3183-3185 ◽  
Author(s):  
J. Vrkoč ◽  
V. Herout ◽  
F. Šorm
Keyword(s):  
Acorus Calamus ◽  
Sweet Flag

scholarly journals Chemical profiling and antioxidant activities of essential oil from rhizomes of Acorus calamus L.

BIBECHANA ◽  
2020 ◽  
Vol 17 ◽  
pp. 89-95
Author(s):  
Sumnath Khanal ◽  
Devi Prasad Bhandari ◽  
Laxman Bhandari ◽  
Achyut Adhikari
Keyword(s):  
Essential Oil ◽  
Antioxidant Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Acorus Calamus ◽  
Chemical Compositions ◽  
Chemical Profiling ◽  
Ic50 Value ◽  
Sweet Flag ◽  
Dpph Scavenging ◽  
Dpph Scavenging Assay

Background and Aims: Acorus calamus L. is an indigenous herb in Nepal. It belongs to family Acoraceae and grows in wet land with scented rhizomes. It is also known as Sweet flag in English and commonly as Bojho in Nepal. The present investigation reveals the chemical compositions and antioxidant activity of rhizome essential oil of A. calamus. Methods: Essential oil of rhizomes of Acorus calamus L. from Kaski district, Nepal was extracted by hydrodistillation method and volatile constituents were analyzed Gas chromatography-Mass spectrometry. The antioxidant potential of essential oil was analyzed by 1,1-Diphenyl-2-Picrylhydrazyl (DPPH) scavenging assay. Results: A GC-MS analysis revealed the presence of β-asarone (22.38%), α-asarone (14.97%), 1-(4,6-dimethoxy-2,3-dimethylphenyl ethanone (14.24%), Isoelemicin (5.68%), cis-Methylisoeugenol (4.26%), α-calacorene (4.16%), and other 20 minor components. From DPPH assay, half maximal inhibitory concentration (IC50) value of essential oil was found to be 108.71 µg/mL. Conclusions: These findings have strengthened the A. calamus L. is good source of compounds like β-asarone, α-asarone and can be used as potential antioxidants. BIBECHANA 17 (2020) 89-95

scholarly journals Assessment of Plant Germination Intensity with the Use of Automated System with Computer Vision Method

2017 ◽  
Vol 21 (4) ◽  
pp. 83-91
Author(s):  
Agnieszka Szparaga ◽  
Ewa Czerwińska ◽  
Dariusz Tomkiewicz ◽  
Lesław Wilk
Keyword(s):  
Processing System ◽  
Automated Analysis ◽  
The Other ◽  
Automated System ◽  
Acorus Calamus ◽  
Computer Image Analysis ◽  
Arctium Lappa ◽  
Sweet Flag ◽  
Brassica Oleracea L ◽  
Plant Germination

AbstractThe objective of the paper was to show various options of using by author an automated stand with computer image analysis for control of plant germination on the example of cauliflower Brassica oleracea L. ‘Pionier” variety. The developed system consisted of a mobile platform equipped with the acquisition and image processing system based on Raspberry PL processor. Germination of cauliflower seeds was the object of observation, which in one case were sown to soil after dressing them with plant extracts (sweet flag Acorus calamus L., great burdock roots Arctium lappa L.). In the other case, undressed seeds were sown in the place of previous application of the above-mentioned extracts. The use of a robot for monitoring plant germination enabled the automated analysis of the investigated material with higher frequency than it has been possible so far. Simultaneously, higher germination was reported when seeds were treated with macerates and extracts from great burdock roots.

scholarly journals Stomatal Conductance Measurement for Toxicity Assessment in Zero-Effluent Constructed Wetlands: Effects of Landfill Leachate on Hydrophytes

2019 ◽  
Vol 16 (3) ◽  
pp. 468
Author(s):  
Andrzej Białowiec ◽  
Jacek Koziel ◽  
Piotr Manczarski
Keyword(s):  
Stomatal Conductance ◽  
Constructed Wetlands ◽  
Landfill Leachate ◽  
Water Vapor Pressure ◽  
Common Reed ◽  
Plant Responses ◽  
Acorus Calamus ◽  
Conductance Measurement ◽  
Sweet Flag

In this research, we explore for the first time the use of leaf stomatal conductance (gs) for phytotoxicity assessment. Plants respond to stress by regulating transpiration. Transpiration can be correlated with stomatal conductance when the water vapor pressure gradient for transpiration is constant. Thus, our working hypothesis was that the gs measurement could be a useful indicator of the effect of toxic compounds on plants. This lab-scale study aimed to test the measurement of gs as a phytotoxicity indicator. Our model plants were two common hydrophytes used in zero-effluent constructed wetlands for treating landfill leachate. The toxic influence of two types of leachate from old landfills (L1, L2) on common reed (Phragmites australis (Cav.) Trin. ex Steud.) and sweet flag (Acorus calamus L.) was tested. The gs measurements correlated well with plant response to treatments with six solutions (0 to 100%) of landfill leachate. Sweet flag showed higher tolerance to leachate solutions compared to common reed. The estimated lowest effective concentration (LOEC) causing the toxic effect values for these leachates were 3.94% of L1 and 5.76% of L2 in the case of reed, and 8.51% of L1 and 10.44% of L2 in the case of sweet flag. Leachate L1 was more toxic than L2. The leaf stomatal conductance measurement can be conducted in vivo and in the field. The proposed approach provides a useful parameter for indicating plant responses to the presence of toxic factors in the environment.

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